config.mk revision ba8b377d89a3bd37ef6112e21c852be75e07db0a 
1## Clang configurations.
2
3# WITHOUT_CLANG covers both HOST and TARGET
4ifeq ($(WITHOUT_CLANG),true)
5WITHOUT_TARGET_CLANG := true
6WITHOUT_HOST_CLANG := true
7endif
8
9ifeq (true,$(FORCE_BUILD_LLVM_COMPONENTS))
10LLVM_PREBUILTS_PATH := $(BUILD_OUT_EXECUTABLES)
11LLVM_PREBUILTS_HEADER_PATH := external/clang/lib/include
12else
13LLVM_PREBUILTS_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.4/bin
14LLVM_PREBUILTS_HEADER_PATH := prebuilts/clang/$(BUILD_OS)-x86/host/3.4/lib/clang/3.4/include/
15endif
16
17CLANG := $(LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX)
18CLANG_CXX := $(LLVM_PREBUILTS_PATH)/clang++$(BUILD_EXECUTABLE_SUFFIX)
19CLANG_TBLGEN := $(LLVM_PREBUILTS_PATH)/clang-tblgen$(BUILD_EXECUTABLE_SUFFIX)
20LLVM_AS := $(LLVM_PREBUILTS_PATH)/llvm-as$(BUILD_EXECUTABLE_SUFFIX)
21LLVM_LINK := $(LLVM_PREBUILTS_PATH)/llvm-link$(BUILD_EXECUTABLE_SUFFIX)
22TBLGEN := $(LLVM_PREBUILTS_PATH)/tblgen$(BUILD_EXECUTABLE_SUFFIX)
23
24
25# Clang flags for all host or target rules
26CLANG_CONFIG_EXTRA_ASFLAGS :=
27CLANG_CONFIG_EXTRA_CFLAGS :=
28CLANG_CONFIG_EXTRA_CPPFLAGS :=
29CLANG_CONFIG_EXTRA_LDFLAGS :=
30
31CLANG_CONFIG_EXTRA_CFLAGS := \
32  -D__compiler_offsetof=__builtin_offsetof
33
34CLANG_CONFIG_UNKNOWN_CFLAGS := \
35  -funswitch-loops \
36  -Wno-psabi \
37  -Wno-unused-but-set-variable \
38  -Wno-unused-but-set-parameter
39
40# Clang flags for all host rules
41CLANG_CONFIG_HOST_EXTRA_ASFLAGS :=
42CLANG_CONFIG_HOST_EXTRA_CFLAGS :=
43CLANG_CONFIG_HOST_EXTRA_CPPFLAGS :=
44CLANG_CONFIG_HOST_EXTRA_LDFLAGS :=
45
46# Clang flags for all target rules
47CLANG_CONFIG_TARGET_EXTRA_ASFLAGS :=
48CLANG_CONFIG_TARGET_EXTRA_CFLAGS := -nostdlibinc
49CLANG_CONFIG_TARGET_EXTRA_CPPFLAGS := -nostdlibinc
50CLANG_CONFIG_TARGET_EXTRA_LDFLAGS :=
51
52# HOST config
53include $(BUILD_SYSTEM)/clang/HOST_$(HOST_ARCH).mk
54
55# TARGET config
56clang_2nd_arch_prefix :=
57include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_ARCH).mk
58
59# TARGET_2ND_ARCH config
60ifdef TARGET_2ND_ARCH
61clang_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
62include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_2ND_ARCH).mk
63endif
64
65
66# Clang compiler-specific libc headers
67CLANG_CONFIG_EXTRA_HOST_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH)
68CLANG_CONFIG_EXTRA_TARGET_C_INCLUDES := $(LLVM_PREBUILTS_HEADER_PATH) $(TARGET_OUT_HEADERS)/clang
69
70# Address sanitizer clang config
71ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fsanitize=address
72ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
73ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES := libdl libasan_preload
74ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
75
76# This allows us to use the superset of functionality that compiler-rt
77# provides to Clang (for supporting features like -ftrapv).
78COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras
79